Method of and apparatus for forming detonator igniter terminals



1,627,860 May 1927 J. M. OLIN ET AL V G DE'I'ONATOR IGNITER TERMINALSOriginal Filed D80. 30. 1922 Patented May 10, 1927. UNITED STATESPATENT- OFFICE,

Jon I. omgs, vloron L. navrs, m JOHN 3. mm, or apron. minors, assmnons'ro cam-amen comm, or user anon, mirrors, a CORPORATION or nnnawmn a v iIE'I'HOD OF AND APPARATUS I03 FORIIIN'G DETOHATOB IGNITEB TERMINALS.

' Drlginal application fled December 86, 1622, Serial Io. 809,854.Divided and thin application filed I'mmber I, 1985; Serial Ho. 67,188. i

the terminals 5, and with a recess 65 form mg a sup rt for the plug 7 onthe connectrons 6. e bottom of the block is vlded with a V-shaped groove66 into w oh the terminals project with the apex of the groove & ssingmedially through the alined termlna Co-operatin with this groove, whichforms a die, is a shaped punch 67. Accordingly when the terminalsprojecting from beyond the plug are positioned as shown, operation of te unch will cause the same to cut alined V-s a d notches in theseterminals as shown in igure 4.

The block 63 is mounted on a frame 68 which has guides 69 for across-head 70 which carries the punch 67 and is connected by a link 71with an 0 rating arm 72 piv' oted on the frame. pon manipulation of thearm 72, therefore, the punch o rates to notch the terminals, as shown inigure 4.

It will, therefore, be seen that the inven tion accomplishes itsobjects. Means and 'mechanism are provided for forming the ends of theigniter connections .to provide a seat for the filament or igniter wireand this This invention relates to detonators, and more particularly toelectricall ignited detonators. This a plication. is a ivision of ourapplication Serial Number 609,954, filed De- I cemher '30, 1922.

As described in the parent application referred to, a plug of ansuitable composition, such as sulphur an mica, is cast upon a pair ofinsulated wires, and the conneclo 'tions terminate a predetermineddistance from each plug in order not only to provide a plug wit a pairof connections, but also to provide terminals projecting from the plugs.The insulation on these terminals is stripped off so as to leave theseterminals bare in order to receive the igniter wire or filament. Theplug with the i iter wire attached thereto is then placed n a loadeddetonator and sealed therein.

99 One of the ob'ects of this invention is to provide a metho andapparatus for so forming the ends of the igniter connections orterminals as to provide a seat for the filamentor igniter Furtherobjects will appear from the detail description taken in connection withthe accompanying drawing, in which:

1 is a plan showing the terminal tunes from the plug and secured therein1n any suitable manner.

formlng m :Hl Figure 2 is a i n 11 l 2-2, Fig- It is obvious thatvarious changes may be are 1; made in details without departing from theFig re 3 is 8 t n 011 line Figspirit of this invention; it is,therefore, to and be understood that this invention is not. to Figure 4is a perspective view, somewhat be limited to the specific details shownand enlar (1, showing the formed terminals. d ib d,

Re t e p y g g, Having thus described the invention, what Figure 4 ows aplug 7 on the insulated is claimed is:

1. In the art of making detonators, the

igniter connection wires 6, and it will be process comprising, formingthe ends of a noted that the ends 5. are not only strip ed so as to bebare, but they are'also notc ed air of ignlter connections apredetermined or slit with the notches or slits running in distance fromthe plug thereon in a single a line in order to receive the igniter wireor operation in order to provide a filament seat. filament. 2. In theart of making detonators, the An a paratus for performing the o 111-process com rising, positioning the igniter tion w' now be described. Itwill, owconnections y a plug thereon, and forming ever, be understoodthat the apparatus is the ends of the connections while so posionlyillustrative of the method and that the tioned.

method may be performed by simple manip- 3. In the art of makingdetonators, the ulation a art from any specific'mechanism. processcomprising, alining the spaced ends Refernng to Figures 1 to 4inclusive, 63 of the igniter connections with the formin a block whichis provided with a' air of tool, and moving the tool past the alin 64forming supporting gui es for ends.

seat is so formed that the filament may readily placed therein, apredetermined dlS- pre etermine ing the alined ends,

'tions, comprising,

4. In the art of making detonators, the process comprising, positioningthe spaced ends of the igniter connections projecting from a plugthereon, in alinement, and formwhile said ends are so positioned.

5. In the art of making detonators, the process comprising, positioningthe spaced ends of 'the igniter connections projecting from a plugthereon, in alinement, and forming the alined ends a predetermineddistance from the plug, while said ends are so positioned.

6. A machine for forming igniler conneca support having a guide adaptedto receive the connection, and a forming element adapted to operate onthe connection.

7 A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive the joined connections, and a formingelement adapted to operate on the connections.

8. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive an aline a pair of igniterconnections, and a forming element adapted to operate on theconnections.

9. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive the connection and its attached plug,and a forming element adapted to operate on the connection.

10. A machine .for forming igniter connections, comprising, a supporthaving a guide adapted to receive the connection and its attached plug,and a forming element ada ted to 0 rate on the connection of a distancefrom'the plug.

11. A machine for forming igniter connections com rising, a supporthavin a guide adap ed to receive a pair of igmter connections and a ingelement adapted to operate on the connections.

12. A machine for forming igniter connections, com rising, a supporthavin a guide adapte to receive a pair of igmter connections and a plugthereon, and a formmg element adapted to operate on the conniactions apredetermined distance from the P "g- 13. A machine for forming ignitrrconnections, comprising, a support having a guide adapted to receive apair of ignilcl' connections and a plug thereon in order to aline theterminals projecting from the plug, and a forming element adapted tooperate on the terminals.

14. A machine for forming igniter connections, com rising, a supporthavin a guide adapte to receive a pair of i lter connections and a plugthereon in or er to aline the terminals prqecting from the plug, and aforming element adapted to operate on the terminals a predetermineddistance from the pin 15. A machine for forming igniter con nections,comprising a die adapt-ed to receive a plug and terminals projectingtherefrom, and a cutter cooperating with said die.

16. Amachine for forming igniter connections, comprising, a die adaptedto receive a plug and terminals projecting therefrbm and a w g cuttercooperating with sai die adapt to groove the ends of the terminals.

-In testimony whereof we aflix our signaltures this 20th day of Au 1925.

J O M. OLIN,

.JOHN B. SBHTH.

plug thereon, and a form- In testimony whereof I aflix my signature 7this 14th day of Sept, 1925.

VICTOR L. DAVIS.

4. In the art of making detonators, the process comprising, positioningthe spaced ends of the igniter connections projecting from a plugthereon, in alinement, and forming the alined ends, while said ends areso positioned.

5. In the art of making detonators, the process comprising, positioningthe spaced ends of the igniter connections projecting from a plugthereon, in alinement, and forming the alined ends a predetermineddistance from the plug, while said ends are so positioned.

6. A machine for forming ignitcr connections, comprising, a supporthaving a guide adapted to receive the connection, and a forming elementadapted to operate on the connection.

7. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive the joined connections, and a formingelement adapted to operate on the connections.

8. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive and aline a pair of igniterconnections, and a forming element adapted to operate on theconnections.

9. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive the connection and its attached plug,and a forming element adapted to operate on the connection.

10. A machine vfor forming igniter connections, comprising, a supporthaving a uide adapted to receive the connection and its attached. plug,and a forming element ada ted to operate on the connection of a preetermined distance from the plug.

11. A machine for forming igniter connections comprising, a supporthavin a guide adapted to receive a pair of igniter connections and aplug thereon, and a forming element adapted to operate on theconnections.

12. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive a pair of igniter connections and aplug thereon, and a forming element adapted to operate on theconngctions a predetermined distance from the 1) ug.

13. A machine for forming ignilvr lf llllltl" tions, comprising, asupport having a guide adapted to receive a pair of ignitcr connectionsand a ping thereon in order to alinc the terminals projecting from theplug, and a forming element adapted to operate on the terminals.

14. A machine for forming igniter connections, comprising, a supporthaving a guide adapted to receive a pair of igniter connections and aplug thereon in order to aline the terminals projecting from the plug,and a forming element adapted to operate on the terminals apredetermined distance from the plug.

15. A machine for forming igniter connections, comprising, a die adaptedto receive a plug and terminals projecting therefrom, and a cuttercooperating with said die.

16. A machine for forming igniter connections, comprising, a die adaptedto receive a plug and terminals projecting therefrom and a wedgingcutter cooperating with said die adapted to groove the ends of theterminals.

In testimony whereof we aflix our signatures this 20th day of August,1925.

JOHN M. OLIN, JOHN B. SllrflTH.

In testimony whereof I aflix my signature this 14th day of Sept., 1925.

VICTOR L. DAVIS.

CERTIFICATE OF CORRECTION.

Patent No. 1, 627, 860.

Granted May 10, 1927, to

JOHN M. OLlN ET AL It is hereby certified t above numbered patentrequiring correction as u o g o chum 1 strike out the words a pan-t theword "of"; and that the said Letters page 2, line 38, claim 10, strikeon Patent should be read with these corrections the hat error appears inthe printed specification of the follows: Page 1, lines 91 and 92,

and insert instead the article "the";

rein that the same may conform to the record of the case in the PatentOffice.

Signed and sealed this 7th day of June,

M. J. Moore, Acting Commissioner of Patcnto.

CERTIFICATE OF CORRECTION.

Patent No. 1,627,860. Granted May 10, 1927, to

JOHN M. OLIN ET AL It is hereby certified that error appears in theprinted specification of the above numbered patent requiring correctionas follows: Page 1, lines 9l and 92, claim I strike out the words "apair of" and insert instead the article "the"; page 2, line 38, claim10, strike out the word "of"; and that the said Letters Patent should heread with these corrections therein that the same may conform to therecord of the ease in the Patent Office.

Signed and sealed this 7th day of June, A. I). 1927.

M. J. Moore,

Seal. Acting Commissioner of Patents.

